A container is a packaged set of data or software. But for your case, it’ll be a packaged version of your entire game, or any updates you need to send out. ‘Containerizing’ makes it easier and faster to roll out into production on the game servers (and to also quickly roll back any previous versions you may have out there).
What’s great about using containers is you can quickly deploy, replicate, move, and back up your game servers.
Containers reduce queue times
If a server crashes, of you have a spike of players in a location where you’re not setup, then having containers of your game will make it quicker and easier to fire up new game servers.